Service Manual HS60 - 第220页
6 M odul ar PCB co nveyo r sys tem S er vice Ma nual HS-6 0 6. 14 Li ght bar rie r s and st o ppe r fo r s ca nnin g t he PCB pos iti on s al on g the tra ns por t rou t es 03/2 00 3 US Iss ue 218 6.1 4.2. 3 E xch ang in…
Service Manual HS-60 6 Modular PCB conveyor system
03/2003 US Issue 6.14 Light barriers and stopper for scanning the PCB positions along the transport routes
217
6.14.2.1 Parts
NOTE
Please note the different item numbers for the individual light barriers. These are for the different
lengths of the connection cable.
Please refer to the relevant spare parts catalogue for the different S-27 HM item numbers.
– 00370063-01 Light barrier transmitter input conveyor
– 00370064-01 Light barrier transmitter placement area1
– 00370065-01 Light barrier transmitter intermediate conveyor (HS-60 only)
– 00370066-01 Light barrier transmitter placement area 2 (HS-60 only)
– 00370067-01 Light barrier transmitter output conveyor
– 00370068-01 Light barrier receiver input conveyor
– 00370069-01 Light barrier receiver placement area1
– 00370070-01 Light barrier receiver intermediate conveyor (HS-60 only)
– 00370071-01 Light barrier receiver placement area 2 (HS-60 only)
– 00370072-01 Light barrier receiver output conveyor
6.14.2.2 Important instructions for replacing the light barrier
– The transmitter is installed on the fixed side of standard conveyor models, while the receiver
is on the moveable side.
– Check whether it would be helpful to feed in the new cable with the aid of the old one, as least
in some areas.
– The connection plug is equipped with contacts, which are pressed onto the wires. You may find
it helpful to remove the contacts from the connection plug, in order to run the cable better
through openings.
– For replacement purposes, the connection cable must be woven out as far as the relevant con-
version board of the conveyor side. This may be somewhat complicated depending on the rout-
ing of cables inside the machine base.
Either contact Siemens Dematic AG SMD Service regarding this work or proceed as follows:
6 Modular PCB conveyor system Service Manual HS-60
6.14 Light barriers and stopper for scanning the PCB positions along the transport routes 03/2003 US Issue
218
6.14.2.3 Exchanging the transmitter or receiver for placement area 1 + 2
General/function
– Switch on the laser light barrier
– The travel profile to brake the PCB starts
The light barrier in the placement area can be moved within a range of 50 mm. it is not necessary
to move the light barrier in order to reduce the speed of the PCB, so that it stops securely at the
laser light barrier.In its standard form, the light barrier is installed in the direction of conveyor input,
giving the maximum distance between the light barrier and laser. The software automatically
learns the slow travel of the PCB of approx.100 ms up to the laser light barrier. Once the travel
profile for braking the PCB has begun, the PCB will be reliably stopped at the laser light barrier
after a maximum of 100 ms.
Receiver
Æ Undo the screw fastening the light barrier.
Æ Pull the side cover plate out of its guidance.
Æ Undo and remove the 7 fastening screws from the guide rail.
Æ Carefully remove the plate beneath and weave out the connection cable as far as the relevant
conversion board of the conveyor side.
Æ Unplug the conversion board of the conveyor side.
Æ Rerun the connection cable accordingly and reconnect the conversion board of the conveyor
side to the electricity supply.
Æ Fix the new light barrier in the original position.
Æ Insert the cover plate and install the guide rail.
While doing this, press the PCB take-up upwards and tighten the 7 fastening screws.
Transmitter
Æ Undo the 2 screws on the guide rail. You can now access the light barrier.
Æ Undo and remove the two screws fastening the light barrier.
Æ Weave out the connection cable as far as the relevant conversion board of the conveyor side.
Æ Unplug the conversion board of the conveyor side.
Æ Rerun the connection cable accordingly and reconnect the conversion board of the conveyor
side to the electricity supply.
Æ Fix the new light barrier in the original position and install the guide rail.
Service Manual HS-60 6 Modular PCB conveyor system
03/2003 US Issue 6.14 Light barriers and stopper for scanning the PCB positions along the transport routes
219
6.14.2.4 Changing the receiver for the input or output conveyor
Transmitter
NOTE
The transmitter on the input and output conveyors is freely accessible. The bracket must be loos-
ened and the screws fastening the light barrier removed.
Æ Loosen the bracket and remove the screws fastening the light barrier.
Æ Weave out the connection cable as far as the relevant conversion board of the conveyor side.
Æ Unplug the conversion board of the conveyor side.
Æ Rerun the connection cable accordingly and reconnect the conversion board of the conveyor
side to the electricity supply.
Æ Fix the new light barrier in the original position.
Receiver
Æ Remove the screws fastening the light barrier.
Æ Undo and remove the 6 screws fastening the guide rail.
Æ Check whether it is possible to weave out the connection cable with its plug.
NOTE
Otherwise check whether you can run the cable through the opening by removing the contacts in
the connection plug.
Æ Relieve the tension on the conveyor belt, if necessary and remove the deflection pulley at the
opening, so that the cable can be woven out
Æ Weave out the connection cable as far as the relevant conversion board of the conveyor side.
Æ Unplug the conversion board of the conveyor side.
Æ Rerun the connection cable accordingly and reconnect the conversion board of the conveyor
side to the electricity supply.
Æ Fix the new light barrier in the original position.
Æ Install the deflection pulley and conveyor toothed belt. Tension the belt (see also Section
6.10.3).